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Ericsson Internal PRODUCT SPECIFICATION
1 (5)
Prepared (also subject responsible if other) No.
EZHIXZH 1/1301- BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) 2014-03-07 N
Key Features • Industry standard five pin Quarter-brick
57.9 x 36.8 x 11.6 mm (2.28 x 1.45 x 0.46 in.) • Optional
digital PMBus interface • Fully regulated intermediate bus
converter • High efficiency, typ. 96% at half load, 12 Vout • +/-
2% output voltage tolerance band • 1500 Vdc input to output
isolation • 2.5 million hours MTBF • Optional baseplate • Optional
output voltage Droop for parallel operation • ISO 9001/14001
certified supplier • PMBus Revision 1.1 compliant Power Management
• Configurable soft start/stop • Precision delay and ramp-up •
Voltage sequencing and margining • Voltage/current/temperature
monitoring • Configurable output voltage • Power good •
Synchronization • Voltage track
Safety Approvals Design for Environment
Meets requirements in high-temperature lead-free soldering
processes.
Ericsson Internal TABLE OF CONTENTS 1 (1)
Prepared (also subject responsible if other) No.
SEC/S Kevin Zhou 00152-EN/LZT146395 Approved Checked Date Rev
Reference
SEC/S Kevin Zhou 2011-07-07 J
Contents Ordering Information
............................................................. 2
General Information
............................................................. 2
Safety Specification
............................................................. 4
Absolute Maximum Ratings
............................................................. 5
Functional Description
............................................................. 6
Electrical Specification 3.3 V, 60 A / 198 W BMR 453 0002/003
............................... 7 5 V, 60 A / 300 W BMR 453
0002/004 ............................. 10 9 V, 33 A / 297 W BMR 453
0000/002 ............................. 13 12 V, 33 A / 396 W BMR
453 0000/001 ............................. 16 EMC Specification
........................................................... 19
Operating Information
........................................................... 20
Thermal considerations
........................................................... 23
Connections
........................................................... 24
PMBus communications
........................................................... 25
Mechanical Information
........................................................... 28
Soldering Information
........................................................... 32
Delivery Information
........................................................... 33
Product Qualification Specification
........................................................... 35
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification
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Ericsson Internal PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other) No.
EZHIXZH 1/1301- BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) 2014-03-07 N
Ordering Information Product program Output BMR4530002/003 3.3 V
/ 60 A, 198 W BMR4530002/004 5 V / 60 A, 300 W BMR4530000/002 9 V /
33 A, 297 W BMR4530006/012 9.6 V / 33 A, 297 W BMR4530000/001 12 V
/ 33 A, 396 W BMR4530006/013 12 V / 33 A, 376 W BMR4530006/014
12.45 V / 33 A, 391 W Product Number and Packaging
BMR453 n1 n2 n3 n4 / n5 n6 n7 Mechanical pin option x /
Mechanical option x / Hardware option x x / Configuration file / x
x x Optional designation
Description
n1
n2 n3 n4 n5 n6 n7
0 = Standard pin length 5.33 mm (0.210 in.) 1 = Surface mount
option note 1 2 = Lead length 3.69 mm (0.145 in.) 3 = Lead length
4.57 mm (0.180 in.) 4 = Lead length 2.79 mm (0.110 in.) (cut) 5 =
Lead length 2.79 mm (0210 in.) stand off 6.7 mm 0 = Open frame 1 =
Baseplate 2 = Baseplate with GND-pin 00 = 8.1-13.2 Vout With
digital interface 01 = 8.1-13.2 Vout Without digital interface 02 =
3-6.7 Vout With digital interface 03 = 3-6.7 Vout Without digital
interface 06 = 8.1-13.2 Vout With 0.6 V droop load sharing function
Without digital interface 07 = 8.1-13.2 Vout With 0.6 V droop load
sharing function With digital interface 001 = 12 V Standard
configuration 002 = 9 V Standard configuration 003 = 3.3 V Standard
configuration 004 = 5 V Standard configuration 007 = 9 V with
positive RC logic configuration 008 = 12 V with positive RC logic
configuration 009 = 3.3 V with positive RC logic configuration 010
= 5 V with positive RC logic configuration 012 = 9.6 V with 0.6 V
droop load sharing function configuration (available only for n3n4
= 06 or 07) 013 = 12 V with 0.6 V droop load sharing function
configuration (Vin 40-75,available, only for n3n4 = 06 or 07) 014 =
12.45 V with 0.6 V droop load sharing function configuration
Packaging
(Vin 40-75, available only for n3n4 = 06 or 07) xxx =
Application Specific Configuration 20 converters/tray/box PE foam
dissipative
Example: Product number BMR4532000/002 equals an Through hole
mount lead length 3.69 mm (cut), open frame, digital interface with
9 V standard configuration variant. Note 1: Surface mount option
available for 8.1-13.2Vout open frame version. Can not be combined
with base plate option. For application specific configurations
contact your local Ericsson Power Modules sales representative.
General Information Reliability The failure rate (λ) and mean
time between failures (MTBF= 1/λ) is calculated at max output power
and an operating ambient temperature (TA) of +40°C. Ericsson Power
Modules uses Telcordia SR-332 Issue 2 Method 1 to calculate the
mean steady-state failure rate and standard deviation (σ).
Telcordia SR-332 Issue 2 also provides techniques to estimate the
upper confidence levels of failure rates based on the mean and
standard deviation. Mean steady-state failure rate, λ Std.
deviation, σ 403 nFailures/h 61 nFailures/h MTBF (mean value) for
the BMR453 series = 2.5 Mh. MTBF at 90% confidence level = 2.1
Mh
Compatibility with RoHS requirements The products are compatible
with the relevant clauses and requirements of the RoHS directive
2011/65/EU and have a maximum concentration value of 0.1% by weight
in homogeneous materials for lead, mercury, hexavalent chromium,
PBB and PBDE and of 0.01% by weight in homogeneous materials for
cadmium. Exemptions in the RoHS directive utilized in Ericsson
Power Modules products are found in the Statement of Compliance
document. Ericsson Power Modules fulfills and will continuously
fulfill all its obligations under regulation (EC) No 1907/2006
concerning the registration, evaluation, authorization and
restriction of chemicals (REACH) as they enter into force and is
through product materials declarations preparing for the
obligations to communicate information on substances in the
products.
2
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 2
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Ericsson Internal PRODUCT SPECIFICATION
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Reference
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Quality Statement The products are designed and manufactured in
an industrial environment where quality systems and methods like
ISO 9000, Six Sigma, and SPC are intensively in use to boost the
continuous improvements strategy. Infant mortality or early
failures in the products are screened out and they are subjected to
an ATE-based final test. Conservative design rules, design reviews
and product qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the products.
Warranty Warranty period and conditions are defined in Ericsson
Power Modules General Terms and Conditions of Sale. Limitation of
Liability Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantability or fitness for a particular purpose (including, but
not limited to, use in life support applications, where
malfunctions of product can cause injury to a person’s health or
life). © Ericsson AB 2014 The information and specifications in
this technical specification is believed to be correct at the time
of publication. However, no liability is accepted for inaccuracies,
printing errors or for any consequences thereof. Ericsson AB
reserves the right to change the contents of this technical
specification at any time without prior notice.
3
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 3
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Ericsson Internal PRODUCT SPECIFICATION
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EZHIXZH 1/1301- BMR 453 Uen Approved Checked Date Rev
Reference
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Safety Specification General information Ericsson Power Modules
DC/DC converters and DC/DC regulators are designed in accordance
with the safety standards IEC 60950-1, EN 60950-1 and UL 60950-1
Safety of Information Technology Equipment. IEC/EN/UL 60950-1
contains requirements to prevent injury or damage due to the
following hazards:
• Electrical shock • Energy hazards • Fire • Mechanical and heat
hazards • Radiation hazards • Chemical hazards
On-board DC/DC converters and DC/DC regulators are defined as
component power supplies. As components they cannot fully comply
with the provisions of any safety requirements without “conditions
of acceptability”. Clearance between conductors and between
conductive parts of the component power supply and conductors on
the board in the final product must meet the applicable safety
requirements. Certain conditions of acceptability apply for
component power supplies with limited stand-off (see Mechanical
Information and Safety Certificate for further information). It is
the responsibility of the installer to ensure that the final
product housing these components complies with the requirements of
all applicable safety standards and regulations for the final
product. Component power supplies for general use should comply
with the requirements in IEC/EN/UL 60950-1 Safety of Information
Technology Equipment. Product related standards, e.g. IEEE 802.3af
Power over Ethernet, and ETS-300132-2 Power interface at the input
to telecom equipment, operated by direct current (dc) are based on
IEC/EN/UL 60950-1 with regards to safety. Ericsson Power Modules
DC/DC converters, Power interface modules and DC/DC regulators are
UL 60950-1 recognized and certified in accordance with EN 60950-1.
The flammability rating for all construction parts of the products
meet requirements for V-0 class material according to IEC
60695-11-10, Fire hazard testing, test flames – 50 W horizontal and
vertical flame test methods. Isolated DC/DC converters & Power
interface modules The product may provide basic or functional
insulation between input and output according to IEC/EN/UL 60950-1
(see Safety Certificate), different conditions shall be met if the
output of a basic or a functional insulated product shall be
considered as safety extra low voltage (SELV). For basic insulated
products (see Safety Certificate) the
output is considered as safety extra low voltage (SELV) if one
of the following conditions is met:
• The input source provides supplementary or double or
reinforced insulation from the AC mains according to IEC/EN/UL
60950-1.
• The input source provides functional or basic insulation from
the AC mains and the product’s output is reliably connected to
protective earth according to IEC/EN/UL 60950-1.
For functional insulated products (see Safety Certificate) the
output is considered as safety extra low voltage (SELV) if one of
the following conditions is met:
• The input source provides double or reinforced insulation from
the AC mains according to IEC/EN/UL 60950-1.
• The input source provides basic or supplementary insulation
from the AC mains and the product’s output is reliably connected to
protective earth according to IEC/EN/UL 60950-1.
• The input source is reliably connected to protective earth and
provides basic or supplementary insulation according to IEC/EN/UL
60950-1 and the maximum input source voltage is 60 Vdc.
Galvanic isolation between input and output is verified in an
electric strength test and the isolation voltage (Viso) meets the
voltage strength requirement for basic insulation according to
IEC/EN/UL 60950-1. It is recommended to use a slow blow fuse at the
input of each DC/DC converter. If an input filter is used in the
circuit the fuse should be placed in front of the input filter. In
the rare event of a component problem that imposes a short circuit
on the input source, this fuse will provide the following
functions:
• Isolate the fault from the input power source so as not to
affect the operation of other parts of the system
• Protect the distribution wiring from excessive current and
power loss thus preventing hazardous overheating
Non - isolated DC/DC regulators The DC/DC regulator output is
SELV if the input source meets the requirements for SELV circuits
according to IEC/EN/UL 60950-1.
4
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 4
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Ericsson Internal PRODUCT SPECIFICATION
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Absolute Maximum Ratings
Characteristics min typ max Unit TP1 Operating Temperature (see
Thermal Consideration section) -40 +125 °C TS Storage temperature
-55 +125 °C VI Input voltage -0.5 80 V Viso Isolation voltage
(input to output test voltage), see note 1 1500 Vdc Vtr Input
voltage transient (Tp 100 ms) 100 V VRC Remote Control pin voltage
-0.3 18 V V Logic I/O SALERT, CTRL, SYNC, SCL, SDA, SA(0,1) -0.3
3.6 V
Stress in excess of Absolute Maximum Ratings may cause permanent
damage. Absolute Maximum Ratings, sometimes ref erred to as no
destruction limits, are normally tested with one parameter at a
time exceeding the limits of Output data or Electrical
Characteristics. If exposed to stress abov e these limits, f
unction and perf ormance may degrade in an unspecif ied manner.
Note 1: Isolation v oltage (input/output to base-plate) max 750
Vdc.
Fundamental Circuit Diagram
-IN
+IN
+OUT
-OUT
Driver
Driv
er
Control
RC isolation
AuxillarySupply
RC
5
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 5
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Ericsson Internal PRODUCT SPECIFICATION
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Functional Description TP1 = -40 to +90ºC, VI = 36 to 75 V,
sense pins connected to output pins unless otherwise specif ied
under Conditions. Typical values given at: TP1 = +25°C, VI= 53 V,
max IO , unless otherwise specif ied under Conditions Configuration
File: 190 10-CDA 102 935/001 rev D Characteristics Conditions min
typ max Unit PMBus monitoring accuracy VIN_READ Input voltage -3
+0.4 3 % VOUT_READ Output voltage VI = 53 V -1.0 -0.3 1.0 %
IOUT_READ Output current VI = 53 V, 50-100% of max IO -6 ±1 6 %
IOUT_READ Output current VI = 53 V, 10% of max IO -0.7 - 0.7 A
TEMP_READ Temperature -5 - 5 ºC
Fault Protection Characteristics
Input Under Voltage Lockout, UVLO
Factory default - 33 - V Setpoint accuracy -3 - 3 %
Hysteresis Factory default - 1.8 - V Configurable via PMBus of
threshold range, Note 1 0 - - V
Delay - 200 - μs
(Output voltage) Over/Under Voltage Protection, OVP/UVP
VOUT_UV_FAULT_LIMIT Factory default - 0 - V Configurable via
PMBus, Note 1 0 - 16 V
VOUT_OV_FAULT_LIMIT Factory default - 15.6 - V Configurable via
PMBus, Note 1 VOUT - 16 V
fault response time - 200 - μs
Over Current Protection, OCP
Setpoint accuracy Io -6 6 %
IOUT_OC_FAULT_LIMIT Factory default - 38 -
A Configurable via PMBus, Note 1 0 - 100
fault response time - 200 - μs
Over Temperature Protection, OTP
OTP_FAULT_LIMIT Factory default - 135 -
°C Configurable via PMBus, Note 1 -50 135
OTP hysteresis Factory default 10 Configurable via PMBus, Note 1
0 165
fault response time - 200 - μs Logic Input/Output
Characteristics Logic input low (VIL) CTRL_CS, SA0, SA1,
PG_SYNC,
SCL, SDA, - - 0.8 V
Logic input high (VIH) 2.0 - - V
Logic output low (VOL) CTRL_CS, PG_SYNC, SALERT, SCL, SDA IOL =
5 mA
- - 0.4 V
Logic output high (VOH) CTRL_CS, PG_SYNC, SALERT, SCL, SDA IOH =
-5 mA
2.8 - - V
Setup time, SMBus 100 - ns Hold time, SMBus 300 - ns Bus free
time T(BUF) Note 2 200 - us
Note 1: See Operating Infor mation section.
Note 2: It is recommended that a PMBus mas ter read back written
data for verification i.e. do not r ely on the ACK/NACK bit since
this bit are as susceptibl e to errors as any other bit*. However,
under ver y rare operating conditi ons, it is possible to get
intermittent r ead back failures. I t is therefore recommended to i
mplement error handling in the master that also deals with those
situations.
6
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 6
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Ericsson Internal PRODUCT SPECIFICATION
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Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 3.3V, 60A / 198W
Electrical Specification BMR 453 0002/003 TP1 = -40 to +90ºC, VI =
36 to 75 V, sense pins connected to output pins unless otherwise
specif ied under Conditions. Typical values given at: TP1 = +25°C,
VI= 53 V, max IO , unless otherwise specif ied under Conditions.
Additional Cout = 0.1 mF, Configuration File: 190 10-CDA 102
935/003 rev B Characteristics Conditions min typ max Unit VI Input
voltage range 36 75 V VIoff Turn-off input voltage Decreasing input
voltage 32 33 34 V VIon Turn-on input voltage Increasing input
voltage 34 35 36 V CI Internal input capacitance 10 μF PO Output
pow er 0 198 W
η Eff iciency
50% of max IO 94.7
% max IO 93.3 50% of max IO , VI = 48 V 94.9 max IO , VI = 48 V
93.3
Pd Pow er Dissipation max IO 14.1 20.8 W Pli Input idling pow er
IO = 0 A, VI = 53 V 1.7 W PRC Input standby power VI = 53 V (turned
off w ith RC) 123 mW fs Default switching frequency 0-100% of max
IO see Note 1 171 180 189 kHz
VOi Output voltage initial setting and accuracy TP1 = +25°C, VI
= 53 V, IO = 60 A 3.26 3.3 3.36 V
VO
Output adjust range See operating information 3.0 6.7 V Output
voltage tolerance band 0-100% of max IO 3.22 3.38 V Line regulation
max IO 4 16 mV Load regulation VI = 53 V, 1-100% of max IO 4 12
mV
Vtr Load transient voltage deviation VI = 53 V, Load step
25-75-25% of max IO, di/dt = 1 A/μs, see Note 2
±0.2 V
ttr Load transient recovery time 250 µs
tr Ramp-up time (f rom 10−90% of VOi) 10-100% of max IO, TP1 =
25ºC, VI = 53 V see Note 3
8 ms
ts Start-up time (f rom VI connection to 90% of VOi) 140 ms
tf Vin shutdown fall time (f rom VI off to 10% of VO) max IO 0.2
ms IO = 0 A 4.5 s
tRC RC start-up time max IO 52 ms
RC shutdow n fall time (f rom RC off to 10% of VO)
max IO 3 ms IO = 0 A 4.5 s
IO Output current 0 60 A Ilim Current limit threshold VO = 3.0
V, TP1 < max TP1 61 66 82 A Isc Short circuit current TP1 =
25ºC, VO < 0.2 V, see Note 4 11 A Cout Recommended Capacitive
Load TP1 = 25ºC, see Note 5 0.1 6 10 mF
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 30 100 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 10-100% of
max IO , see Note 6 4.6 V
Note 1: Frequency may be adj usted via PMBus, see Operati ng
Information section.
Note 2: Cout = 6 mF used at load transient test. Note 3:
Start-up and R amp-up time can be increased via PMBus, see
Operation Information section. Note 4: RMS current in hiccup mode.
Note 5: Low ESR-value. Note 6: OVP-level can be adj usted via
PMBus, see Operati on Information.
7
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 7
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Ericsson Internal PRODUCT SPECIFICATION
4 (15)
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Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 3.3V, 60A / 198W
Electrical Specification BMR 453 0002/003
Efficiency Power Dissipation
75
80
85
90
95
100
0 10 20 30 40 50 60 [A]
[%]
36 V
48 V
53 V
75 V
02468
1012141618
0 10 20 30 40 50 60 [A]
[W]
36 V48 V53 V75 V
Efficiency vs. load current and input v oltage at TP1 = +25°C
Dissipated power v s. load current and input v oltage at
TP1 = +25°C
Output Current Derating, open frame Output Current Derating,
base plate option
0
10
20
30
40
50
60
10 30 50 70 90 110 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
0
10
20
30
40
50
60
10 30 50 70 90 110 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0,0 0,5 1,0 1,5 2,0 2,5 3,0[m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the conv erter.
Tested in wind tunnel with airf low and test conditions as per the
Thermal consideration section. VI = 53 V
8
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 8
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Ericsson Internal PRODUCT SPECIFICATION
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SEC/D (Julia You) SECSUND 2014-03-05 L 3.3V, 60A / 198W
Electrical Specification BMR 453 0002/003
Output Characteristics Current Limit Characteristics
3.20
3.25
3.30
3.35
3.40
0 10 20 30 40 50 60 [A]
[V]
36 V48 V53 V75 V
1.0
2.0
3.0
4.0
60 62 64 66 68 70 72 74 [A]
[V]
36 V48 V53 V75 V
Output v oltage v s. load current at TP1 = +25°C Output v oltage
v s. load current at IO > max IO , TP1 = +25°C
Start-up Shut-down
Start-up enabled by connecting VI at: TP1 = +25°C, VI = 53 V, IO
= 60 A resisti ve load.
Top trace: output voltage (2 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (50 ms/di v.).
Shut- down enabl ed by disconnecting VI at: TP1 = +25°C, VI = 53
V, IO =60 A resisti ve load.
Top trace: output voltage (2 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at: TP1 = +25°C, VI = 53 V, IO = 60 A
resisti ve load.
Trace: output voltage ( 20 mV/di v.). Time scal e: (2 µs/di
v.).
Output voltage response to l oad current step-change ( 15 – 45 –
15 A) at: TP1 =+25°C, VI = 53 V.
Top trace: output voltage (0.2 V/di v.). Bottom trace: output
current ( 50 A/di v.). Time scal e: (0.5 ms/div.).
9
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 9
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Ericsson Internal PRODUCT SPECIFICATION
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Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 5.0V, 60A / 300W
Electrical Specification BMR 453 0002/004 TP1 = -40 to +90ºC, VI =
36 to 75 V, sense pins connected to output pins unless otherwise
specif ied under Conditions. Typical values given at: TP1 = +25°C,
VI= 53 V, max IO , unless otherwise specif ied under Conditions.
Additional Cout = 0.1 mF, Configuration File: 190 10-CDA 102
935/004 rev B Characteristics Conditions min typ max Unit VI Input
voltage range 36 75 V VIoff Turn-off input voltage Decreasing input
voltage 32 33 34 V VIon Turn-on input voltage Increasing input
voltage 34 35 36 V CI Internal input capacitance 10 μF PO Output
pow er 0 300 W
η Eff iciency
50% of max IO 96.0
% max IO 94.8 50% of max IO , VI = 48 V 96.1 max IO , VI = 48 V
94.8
Pd Pow er Dissipation max IO 16.5 22.8 W Pli Input idling pow er
IO = 0 A, VI = 53 V 1.9 W PRC Input standby power VI = 53 V (turned
off w ith RC) 143 mW fs Default switching frequency 0-100% of max
IO see Note 1 171 180 189 kHz
VOi Output voltage initial setting and accuracy TP1 = +25°C, VI
= 53 V, IO = 60 A 4.95 5.0 5.05 V
VO
Output adjust range See operating information 3.0 6.7 V Output
voltage tolerance band 0-100% of max IO 4.9 5.1 V Line regulation
max IO 3 19 mV Load regulation VI = 53 V, 1-100% of max IO 6 12
mV
Vtr Load transient voltage deviation VI = 53 V, Load step
25-75-25% of max IO, di/dt = 1 A/μs, see Note 2
±0.2 V
ttr Load transient recovery time 200 µs
tr Ramp-up time (f rom 10−90% of VOi) 10-100% of max IO, TP1 =
25ºC, VI = 53 V see Note 3
8 ms
ts Start-up time (f rom VI connection to 90% of VOi) 140 ms
tf Vin shutdown fall time (f rom VI off to 10% of VO) max IO 0.2
ms IO = 0 A 4.5 s
tRC RC start-up time max IO 53 ms
RC shutdow n fall time (f rom RC off to 10% of VO)
max IO 2 ms IO = 0 A 4.5 s
IO Output current 0 60 A Ilim Current limit threshold VO = 4.5
V, TP1 < max TP1 61 66 82 A Isc Short circuit current TP1 =
25ºC, VO < 0.2 V, see Note 4 11 A Cout Recommended Capacitive
Load TP1 = 25ºC, see Note 5 0.1 6 10 mF
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 25 100 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 10-100% of
max IO , see Note 6 6.8 V
Note 1: Frequency may be adj usted via PMBus, see Operati ng
Information section.
Note 2: Cout = 6 mF used at load transient test. Note 3:
Start-up and R amp-up time can be increased via PMBus, see
Operation Information section. Note 4: RMS current in hiccup mode.
Note 5: Low ESR-value. Note 6: OVP-level can be adj usted via
PMBus, see Operati on Information.
10
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 10
-
Ericsson Internal PRODUCT SPECIFICATION
7 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 5.0V, 60A / 300W
Electrical Specification BMR 453 0002/004
Efficiency Power Dissipation
75
80
85
90
95
100
0 10 20 30 40 50 60 [A]
[%]
36 V
48 V
53 V
75 V
02468
101214161820
0 10 20 30 40 50 60 [A]
[W]
36 V48 V53 V75 V
Efficiency vs. load current and input v oltage at TP1 = +25°C
Dissipated power v s. load current and input v oltage at TP1 =
+25°C
Output Current Derating, open frame Output Current Derating,
base plate option
0
10
20
30
40
50
60
10 30 50 70 90 110 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
0
10
20
30
40
50
60
10 30 50 70 90 110 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the conv erter.
Tested in wind tunnel with airf low and test conditions as per the
Thermal consideration section. VI = 53 V
11
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 11
-
Ericsson Internal PRODUCT SPECIFICATION
8 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 5.0V, 60A / 300W
Electrical Specification BMR 453 0002/004
Output Characteristics Current Limit Characteristics
4.90
4.95
5.00
5.05
5.10
0 10 20 30 40 50 60 [A]
[V]
36 V48 V53 V75 V
1.0
2.0
3.0
4.0
5.0
6.0
60 62 64 66 68 70 72 74 [A]
[V]
36 V48 V53 V75 V
Output v oltage v s. load current at TP1 = +25°C Output v oltage
v s. load current at IO > max IO , TP1 = +25°C
Start-up Shut-down
Start-up enabled by connecting VI at: TP1 = +25°C, VI = 53 V, IO
= 60 A resisti ve load.
Top trace: output voltage (2 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (50 ms/di v.).
Shut- down enabl ed by disconnecting VI at: TP1 = +25°C, VI = 53
V, IO =60 A resisti ve load.
Top trace: output voltage (2 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at: TP1 = +25°C, VI = 53 V, IO = 60 A
resisti ve load.
Trace: output voltage ( 20 mV/di v.). Time scal e: (2 µs/di
v.).
Output voltage response to l oad current step-change ( 15-45-15
A) at : TP1 =+25°C, VI = 53 V.
Top trace: output voltage (0.2 V/di v.). Bottom trace: output
current ( 50 A/di v.). Time scal e: (0.5 ms/div.).
12
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 12
-
Ericsson Internal PRODUCT SPECIFICATION
9 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 9.0V, 33A / 297W
Electrical Specification BMR 453 0000/002 TP1 = -40 to +90ºC, VI =
36 to 75 V, sense pins connected to output pins unless otherwise
specif ied under Conditions. Typical values given at: TP1 = +25°C,
VI= 53 V, max IO , unless otherwise specif ied under Conditions.
Additional Cout = 0.1 mF, Configuration File: 190 10-CDA 102
935/002 rev D Characteristics Conditions min typ max Unit VI Input
voltage range 36 75 V VIoff Turn-off input voltage Decreasing input
voltage 32 33 34 V VIon Turn-on input voltage Increasing input
voltage 34 35 36 V CI Internal input capacitance 18 μF PO Output
pow er 0 297 W
η Eff iciency
50% of max IO 96
% max IO 95 50% of max IO , VI = 48 V 96 max IO , VI = 48 V
95
Pd Pow er Dissipation max IO 15.5 24.7 W Pli Input idling pow er
IO = 0 A, VI = 53 V 2.1 W PRC Input standby power VI = 53 V (turned
off w ith RC) 190 mW fs Default switching frequency 0-100% of max
IO see Note 1 133 140 145 kHz
VOi Output voltage initial setting and accuracy TP1 = +25°C, VI
= 53 V, IO = 17 A 8.90 9.0 9.10 V
VO
Output adjust range See operating information 8.1 13.2 V Output
voltage tolerance band 0-100% of max IO 8.82 9.18 V Line regulation
max IO 15 50 mV Load regulation VI = 53 V, 1-100% of max IO 60 85
mV
Vtr Load transient voltage deviation VI = 53 V, Load step
25-75-25% of max IO, di/dt = 1 A/μs, see Note 2
±0.35 V
ttr Load transient recovery time 250 µs
tr Ramp-up time (f rom 10−90% of VOi) 10-100% of max IO, TP1 =
25ºC, VI = 53 V see Note 3
8 ms
ts Start-up time (f rom VI connection to 90% of VOi) 140 ms
tf Vin shutdown fall time (f rom VI off to 10% of VO) max IO 0.4
ms IO = 0 A 8 s
tRC RC start-up time max IO 53 ms
RC shutdow n fall time (f rom RC off to 10% of VO)
max IO 3.2 ms IO = 0 A 8 s
IO Output current 0 33 A Ilim Current limit threshold VO = 8.1
V, TP1 < max TP1 34 38 43 A Isc Short circuit current TP1 =
25ºC, VO < 0.2 V, see Note 4 6 A Cout Recommended Capacitive
Load TP1 = 25ºC, see Note 5 0.1 3.3 6 mF
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 50 120 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 10-100% of
max IO , see Note 6 15.6 V
Note 1: Frequency may be adj usted via PMBus, see Operati ng
Information section.
Note 2: Cout = 3.3 mF used at load transient test. Note 3:
Start-up and R amp-up time can be increased via PMBus, see
Operation Information section. Note 4: RMS current in hiccup mode.
Note 5: Low ESR-value. Note 6: OVP-level can be adj usted via
PMBus, see Operati on Information.
13
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 13
-
Ericsson Internal PRODUCT SPECIFICATION
10 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 9.0V, 33A / 297W
Electrical Specification BMR 453 0000/002
Efficiency Power Dissipation
75
80
85
90
95
100
0 5 10 15 20 25 30 [A]
[%]
36 V
48 V
53 V
75 V
02468
101214161820
0 5 10 15 20 25 30 [A]
[W]
36 V48 V53 V75 V
Efficiency vs. load current and input v oltage at TP1 = +25°C
Dissipated power v s. load current and input v oltage at TP1 =
+25°C
Output Current Derating, open frame Output Current Derating,
base plate option
0
5
10
15
20
25
30
35
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
0
5
10
15
20
25
30
35
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the conv erter.
Tested in wind tunnel with airf low and test conditions as per the
Thermal consideration section. VI = 53 V
14
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 14
-
Ericsson Internal PRODUCT SPECIFICATION
11 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 9.0V, 33A / 297W
Electrical Specification BMR 453 0000/002
Output Characteristics Current Limit Characteristics
8.80
8.90
9.00
9.10
9.20
0 5 10 15 20 25 30 [A]
[V]
36 V48 V53 V75 V
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
33 35 37 39 41 43 [A]
[V]
36 V48 V53 V75 V
Output v oltage v s. load current at TP1 = +25°C Output v oltage
v s. load current at IO > max IO , TP1 = +25°C
Start-up Shut-down
Start-up enabled by connecting VI at: TP1 = +25°C, VI = 53 V, IO
= 33 A resisti ve load.
Top trace: output voltage (5 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (50 ms/di v.).
Shut- down enabl ed by disconnecting VI at: TP1 = +25°C, VI = 53
V, IO =33 A resisti ve load.
Top trace: output voltage (2 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at: TP1 = +25°C, VI = 53 V, IO = 33 A
resisti ve load.
Trace: output voltage ( 20 mV/di v.). Time scal e: (2 µs/di v.).
Output voltage response to l oad current step-change ( 8.25-24.75-
8.25 A) at:
TP1 =+25°C, VI = 53 V. Top trace: output voltage (0.2 V/di v.).
Bottom trace: output current ( 10 A/di v.). Time scal e: (0.5
ms/div.).
15
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 15
-
Ericsson Internal PRODUCT SPECIFICATION
12 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 12.0V, 33A / 396W
Electrical Specification BMR 453 0000/001 TP1 = -40 to +90ºC, VI =
36 to 75 V, sense pins connected to output pins unless otherwise
specif ied under Conditions. Typical values given at: TP1 = +25°C,
VI = 53 V, max IO , unless otherwise specif ied under Conditions.
Additional Cout = 0.1 mF, Configuration File: 190 10-CDA 102
935/001 rev D Characteristics Conditions min typ max Unit VI Input
voltage range 36 75 V VIoff Turn-off input voltage Decreasing input
voltage 32 33 34 V VIon Turn-on input voltage Increasing input
voltage 34 35 36 V CI Internal input capacitance 18 μF PO Output
pow er 0 396 W
η Eff iciency
50% of max IO 96.5
% max IO 95.5 50% of max IO , VI = 48 V 96.5 max IO , VI = 48 V
95.5
Pd Pow er Dissipation max IO 18.3 27.1 W Pli Input idling pow er
IO = 0 A, VI = 53 V 2.4 W PRC Input standby power VI = 53 V (turned
off w ith RC) 190 mW fs Default switching frequency 0-100% of max
IO see Note 1 133 140 145 kHz
VOi Output voltage initial setting and accuracy TP1 = +25°C, VI
= 53 V, IO = 17 A 11.88 12.0 12.12 V
VO
Output adjust range See operating information 8.1 13.2 V Output
voltage tolerance band 0-100% of max IO 11.76 12.24 V Line
regulation max IO at 40-75V input, see Note 7 20 60 mV Load
regulation VI = 53 V, 1-100% of max IO 60 90 mV
Vtr Load transient voltage deviation VI = 53 V, Load step
25-75-25 % of max IO, di/dt = 1 A/μs, see Note 2
±0.4 V
ttr Load transient recovery time 250 µs
tr Ramp-up time (f rom 10−90% of VOi) 10-100% of max IO, TP1 =
25ºC, VI = 53 V see Note 3
8 ms
ts Start-up time (f rom VI connection to 90% of VOi) 140 ms
tf Vin shutdown fall time (f rom VI off to 10% of VO) max IO 0.4
ms IO = 0 A 7 s
tRC RC start-up time max IO 53 ms
RC shutdow n fall time (f rom RC off to 10% of VO)
max IO 3.2 ms IO = 0 A 7 s
IO Output current 0 33 A Ilim Current limit threshold VO = 10.8
V, TP1 < max Tref 34 38 43 A Isc Short circuit current TP1 =
25ºC, see Note 4 - A Cout Recommended Capacitive Load TP1 = 25ºC,
see Note 5 0.1 3.3 6 mF
VOac Output ripple & noise See ripple & noise section,
max IO 60 120 mVp-p
OVP Over voltage protection TP1 = +25°C, VI = 53 V, 10-100% of
max IO, see Note 6 15.6 V
Note 1: Frequency may be adj usted with PMBus communication. See
Operating Information sec tion
Note 2: Cout = 3.3mF used at l oad transient tes t. Note 3:
Start-up and R amp-up time can be increased via PMBus, see
Operation Information section. Note 4: OCP in latch mode Note 5:
Low ESR-value Note 6: OVP-level can be adj usted via PMBus, see
Operati on Information. Note 7: Li ne r egulation characteristics
at 36 to 75V input are presented on the next page.
16
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 16
-
Ericsson Internal PRODUCT SPECIFICATION
13 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L
12.0V, 33A / 396W Electrical Specification BMR 453 0000/001
Efficiency Power dissipation
75
80
85
90
95
100
0 5 10 15 20 25 30 [A]
[%]
40 V
48 V
53 V
75 V
0
4
8
12
16
20
0 5 10 15 20 25 30 [A]
[W]
40 V48 V53 V75 V
Efficiency vs. load current and input v oltage at TP1 = +25°C
Dissipated power v s. load current and input v oltage at
TP1 = +25°C
Output Current Derating, open frame Output Current Derating,
base plate option
0
5
10
15
20
25
30
35
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
0
5
10
15
20
25
30
35
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Av ailable load current v s. ambient air temperature and airf
low at VI = 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the conv erter.
Tested in wind tunnel with airf low and test conditions as per the
Thermal consideration section. VI = 53 V, IO = 25 A
17
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 17
-
Ericsson Internal PRODUCT SPECIFICATION
14 (15)
Prepared (also subject responsible if other) No.
ESHNMAA 2/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 L 12.0V, 33A / 396W
Electrical Specification BMR 453 0000/001
Output Characteristics Current Limit Characteristics
11.5
11.8
12.0
12.3
12.5
0 5 10 15 20 25 30 [A]
[V]
40 V48 V53 V75 V
0.0
3.0
6.0
9.0
12.0
32 34 36 38 40 [A]
[V]
40 V48 V53 V75 V
Output v oltage v s. load current at TP1 = +25°C
The output v oltage range is limited at 36V input v oltage.
Output v oltage v s. load current at IO > max IO , TP1 =
+25°C
Start-up Shut-down
Start-up enabled by connecting VI at: Tref = +25°C, VI = 53 V,
IO = 33 A resisti ve load.
Top trace: output voltage (5 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (50 ms/di v.).
Shut- down enabl ed by disconnecting VI at: TP1 = +25°C, VI = 53
V, IO =33 A resisti ve load.
Top trace: output voltage (5 V/di v.). Bottom trace: input
voltage ( 50 V/di v.). Time scal e: (1 ms/di v.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at: TP1 = +25°C, VI = 53 V, IO = 33 A
resisti ve load.
Trace: output voltage ( 20 mV/di v.). Time scal e: (2 µs/di
v.).
Output voltage response to l oad current step-change
(8.25-24.75-8.25 A) at: TP1 =+25°C, VI = 53 V, CO = 3.3mF .
Top trace: output voltage (0.2 V/di v.). Bottom trace: output
current ( 10 A/di v.). Time scal e: (0.5 ms/div.).
18
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 18
-
Ericsson Internal PRODUCT SPECIFICATION
1 (7)
Prepared (also subject responsible if other) No.
ESHNMAA 30/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 M
EMC Specification Conducted EMI measured according to EN55022,
CISPR 22 and FCC part 15J (see test set-up). See Design Note 009
for further information. The fundamental switching frequency is 140
kHz for BMR 453 @ VI = 53 V, max IO. Conducted EMI Input terminal
value (typ)
EMI without filter External filter (class B) Suggested external
input filter in order to meet class B in EN 55022, CISPR 22 and FCC
part 15J.
L1
C1 C2 C3
C4
C5
R
-
+
Module
+
-
0
0
L2
Filter components: C1 = 1 + 1 µF C2 = 1 + 1 µF C3 = 220 µF C4 =
2.2 nF C5 = 2.2 nF L1 = 0.81 mH L2 = 0.81 mH
EMI with filter
Test set-up Layout recommendation The radiated EMI performance
of the product will depend on the PWB layout and ground layer
design. It is also important to consider the stand-off of the
product. If a ground layer is used, it should be connected to one
of the output terminals and the equipment ground or chassis. A
ground layer will increase the stray capacitance in the PWB and
improve the high frequency EMC performance. Output ripple and noise
Output ripple and noise measured according to figure below. See
Design Note 022 for detailed information.
Output ripple and noise test setup
19
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 19
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Ericsson Internal PRODUCT SPECIFICATION
2 (7)
Prepared (also subject responsible if other) No.
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Reference
SEC/D (Julia You) SECSUND 2014-03-05 M
Operating information Input Voltage The input voltage range 36
to 75 Vdc meets the requirements of the European Telecom Standard
ETS 300 132-2 for normal input voltage range in -48 and -60 Vdc
systems, -40.5 to -57.0 V and –50.0 to -72 V respectively. At input
voltages exceeding 75 V, the power loss will be higher than at
normal input voltage and TP1 must be limited to absolute max
+125°C. The absolute maximum continuous input voltage is 80 Vdc.
Turn-off Input Voltage The product monitors the input voltage and
will turn on and turn off at predetermined levels. The turn on and
turn off level and the hysteresis in between can be configured via
the PMBus. The default hysteresis between turn on and turn off
input voltage is set to 2 V. Remote Control (RC)
The products are fitted with a configurable remote control
function. The primary remote control is referenced to the primary
negative input connection (-In). The RC function allows the
converter to be turned on/off by an external device like a
semiconductor or mechanical switch. The RC pin has an internal pull
up resistor. The remote control functions can also be configured
using the PMBus.
The device should be capable of sinking 0.7 mA. When the RC pin
is left open, the voltage generated on the RC pin is max 6 V. The
standard product is provided with “negative logic” remote control
and will be off until the RC pin is connected to the -In. To turn
on the product the voltage between RC pin and -In should be less
than 1 V. To turn off the product the RC pin should be left open.
In situations where it is desired to have the product to power up
automatically without the need for control signals or a switch, the
RC pin can be wired directly to -In. The logic option for the
primary remote control is configured using the PMBus. Remote
Control (secondary side) The CTRL CS pin can be configured as
remote control via the PMBus interface. In the default
configuration the CTRL CS pin is disabled and the output has an
internal pull-up to 3.3 V. The CTRL CS pin can be left open when
not used. The logic options for the secondary remote control can be
positive or negative logic. Input and Output Impedance The
impedance of both the input source and the load will interact with
the impedance of the product. It is important that the input source
has low characteristic impedance. Minimum
recommended external input capacitance is 100 uF. The
performance in some applications can be enhanced by addition of
external capacitance as described under External Decoupling
Capacitors. External Decoupling Capacitors When powering loads with
significant dynamic current requirements, the voltage regulation at
the point of load can be improved by addition of decoupling
capacitors at the load. The recommended minimum capacitance on the
output is 100 uF. The most effective technique is to locate low ESR
ceramic and electrolytic capacitors as close to the load as
possible, using several parallel capacitors to lower the effective
ESR. The ceramic capacitors will handle high-frequency dynamic load
changes while the electrolytic capacitors are used to handle low
frequency dynamic load changes. Ceramic capacitors will also reduce
any high frequency noise across the load. It is equally important
to use low resistance and low inductance PWB layouts and cabling.
External decoupling capacitors will become part of the product’s
control loop. The control loop is optimized for a wide range of
external capacitance and the maximum recommended value that could
be used without any additional analysis is found in the Electrical
specification. The ESR of the capacitors is a very important
parameter. Stable operation is guaranteed with a verified ESR value
of >10 mΩ across the output connections. For further information
please contact your local Ericsson Power Modules representative.
PMBus configuration and support The products provide a PMBus
digital interface that enables the user to configure many aspects
of the device operation as well as monitor the input and output
parameters. Please contact your local Ericsson Power Modules
representative for appropriate SW tools to down-load new
configurations. Output Voltage Adjust using PMBus The output
voltage of the product can be reconfigured using the PMBus
interface. BMR 453 xx00/001 and /002 can be adjusted from 8.1 V to
13.2 V. The BMR 453 xx02/003 and /004 can be adjusted from 3.0 V to
6.7 V.
8.18.69.19.6
10.110.611.111.612.112.613.113.6
36 41 45 50 55 60 65 70 75 [Vin, V]
[Vout, V]
The output voltage will be fully regulated for all operating
combinations within the shaded area in the plot above.
20
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 20
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Ericsson Internal PRODUCT SPECIFICATION
3 (7)
Prepared (also subject responsible if other) No.
ESHNMAA 30/1301-BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) SECSUND 2014-03-05 M
Operation outside of this area is not recommended for normal
use.
Margin Up/Down Controls These controls allow the output voltage
to be momentarily adjusted, either up or down, by a nominal 10%.
This provides a convenient method for dynamically testing the
operation of the load circuit over its supply margin or range. It
can also be used to verify the function of supply voltage
supervisors. The margin up and down levels of the product can be
re-configured using the PMBus interface. Soft-start Power Up The
soft-start control introduces a time-delay (default setting 40 ms)
before allowing the output voltage to rise. The default rise time
of the ramp up is 10 ms. Power-up is hence completed within 50 ms
in default configuration using remote control. When starting by
applying input voltage the control circuit boot-up time adds an
additional 100 ms delay. The soft-start power up of the product can
be reconfigured using the PMBus interface. Remote Sense The
products have remote sense that can be used to compensate for
voltage drops between the output and the point of load. The sense
traces should be located close to the PCB ground layer to reduce
noise susceptibility. The remote sense circuitry will compensate
for up to 10% voltage drop between +Out pin and the point of load
(+Sense). The -Sense pin should be always connected to -Out. When
activating remote sense, connect the +Sense pin to the +Input of
the load. If the remote sense is not needed +Sense pin should be
connected to +Out of the BMR453 unit. To be able to use remote
sense the converter must be equipped with a digital connector.
Temperature Protection (OTP, UTP) The products are protected from
thermal overload by an internal temperature shutdown protection.
When TP1 as defined in thermal consideration section is exceeded
the product will shut down. The product will make continuous
attempts to start up (non-latching mode) and resume normal
operation automatically when the temperature has dropped below the
temperature threshold, the hysteresis is defined in general
electrical specification. The OTP and hysteresis of the product can
be re-configured using the PMBus interface. The product has also an
under temperature protection. The OTP and UTP fault limit and fault
response can be configured via the PMBus. Note: using the fault
response “continue without interruption” may cause permanent damage
of the product. Over Voltage Protection (OVP) The product has
output over voltage protection that will shut down the converter in
over voltage conditions (latching mode) The OVP fault level and
fault response can be re-configured using the PMBus interface.
Over Current Protection (OCP) The product includes current
limiting circuitry for protection at continuous overload. The
module needs RC cycle operation at least once before enters hiccup
mode if the maximum output current is exceeded and the output
voltage is below 0.3×Vout. The load distribution should be designed
for the maximum output short circuit current specified. If for some
reason the output should be short circuited, minimum resistance
should not be lower than 6 mΩ. The OCP level and fault response can
be re-configured using the PMBus interface. The default
configuration is set to hiccup mode for the OCP, except for
BMR453xxxx/001 (latching OCP). Brick wall OCP mode is also
supported in BMR453 series for option. For further information
please contact your local Ericsson Power Modules representative. RC
recycle operation as below:
Input Over/Under voltage protection The input of the product can
be protected agains high input voltage and low input voltage. The
over- and under-voltage fault level and fault response can be
configured via the PMBus interface. Pre-bias Start-up The product
has a Pre-bias start up functionality and will not sink current
during start up if a pre-bias source is present at the output
terminals. Power Good The PG SYNC pin can be configured as an
output (POWER GOOD). The power good signal (TTL level) indicates
proper operation of the product and can also be used as an error
flag indicator. The PG SYNC pin has POWER GOOD as default
configuration with the output set as active low. The PG SYNC pin is
configured via the PMBus interface. Tracking and External reference
The PG SYNC pin can be configured as an input for voltage tracking
or an external analogue reference. The PG SYNC pin is configured
via the PMBus interface and has default setting Power Good. Send
command MFR_MULTI_PIN_CONFIG (0xF9h) with data 0x10h, the module
will work in standalone tracking mode; Connect the PG_SYNC pin to
the external reference voltage (ground to –OUT), the output voltage
will follow this reference voltage with a predefined scale. The max
reference voltage is 2.5 V which connects to digital controller's
ADC port. The reference voltage / Vout scale factor is stored
in
Vin
RC_on
RC_off
RC_on
RC_off
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Technical Specification 21
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Ericsson Internal PRODUCT SPECIFICATION
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Reference
SEC/D (Julia You) SECSUND 2014-03-05 M
MFR_VOUT_ANALOG_SCALE (0xE8h) with default value 0.175(0xA2CDh),
end user can change it by using PMBus command. End user can read
the scaled value by command MFR_READ_VOUT_ANALOG_REF (0xE9h). Any
changes of using PMBUS command should use command Store Default all
(0x11h) to make the change permanent before power off. Switching
frequency adjust using PMBus The switching frequency is set to 140
kHz as default but this can be reconfigured via the PMBus
interface. The product is optimized at this frequency but can run
at lower and higher frequency, (125 kHz – 150 kHz). However the
output performance is not specified if the frequency is changed.
Input Transient The BMR453 products have limited ability to react
on sudden input voltage changes. As an example the 12 V module
BMR453xxxx/001 can have an output voltage deviation of 5 V when a
20 V input step is applied (40 V to 60 V). This is tested with a
slew rate of 0.1 V/us on the input voltage change and minimum
output capacitance 100 uF. Increasing the output capacitance will
improve the result. Parallel Operation with Droop The BMR 453
0006(or BMR4530007) with /012 or /013 or /014 configuration file
are variants that can be connected in parallel. The products have a
pre-configured voltage droop: The stated output voltage initial
setting accuracy is within ±35mV at no load, The output voltage
will decrease when the load current is increased, the voltage will
droop 0.6V while load reaches max load. This feature allows the
products to be connected in parallel and share the current with 10%
accuracy. Up to 90% of max output current can be used from each
module.
Parallel Operation with Droop
8.8
9.0
9.2
9.4
9.6
9.8
0 10 20 30 40 50 60Output current [A]
Out
put v
olta
ge [V
]
Module 1+2
Module 1
Module 2
Fault protection at parallel operation with Droop If one of the
two modules exceeds the OVP, OCP or OTP level, the module might
turn off depends on its pre-set fault response action, and the
other module might not handle more current than its max capability,
that will lead to both modules can not recover until the protection
trig condition removed, to secure a normal operation, both modules
need a reset.
Typical Vout Vs. Vin characteristic at 33A load and TP1=25ºC
10.0
10.4
10.8
11.2
11.6
12.0
12.4
36 39 42 44 47 50 55 60 65 70 75 [Vin, V]
[Vout, V]
The output voltage will be fully regulated for all operating
combinations within the shaded area in the plot above. Operation
outside of this area is not recommended for normal use.
22
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Technical Specification 22
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Ericsson Internal PRODUCT SPECIFICATION
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Reference
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Thermal Consideration General The products are designed to
operate in different thermal environments and sufficient cooling
must be provided to ensure reliable operation. For products mounted
on a PWB without a heat sink attached, cooling is achieved mainly
by conduction, from the pins to the host board, and convection,
which is dependant on the airflow across the product. Increased
airflow enhances the cooling of the product. The Output Current
Derating graph found in the Output section for each model provides
the available output current vs. ambient air temperature and air
velocity at VI = 53 V. The product is tested on a 254 x 254 mm, 35
µm (1 oz), 8-layer test board mounted vertically in a wind tunnel
with a cross-section of 608 x 203 mm.
Definition of product operating temperature The product
operating temperatures is used to monitor the temperature of the
product, and proper thermal conditions can be verified by measuring
the temperature at positions P1, P2, P3, P4. The temperature at
these positions (TP1, TP2, TP3, TP4) should not exceed the maximum
temperatures in the table below. The number of measurement points
may vary with different thermal design and topology. Temperatures
above maximum TP1, measured at the reference point P1 (P3 for base
plate versions) are not allowed and may cause permanent damage.
Position Description Max temperature P1 PWB (reference point)
TP1=125º C
P2 Opto-coupler TP2=105º C
P3 PWB (reference point for base-plate version) TP3=125º C
P4 Primary MOSFET TP4=125º C
Top view Bottom view (Best airflow direction Negative to
Positive.) (base plate version)
Ambient Temperature Calculation For products with base plate the
maximum allowed ambient temperature can be calculated by using the
thermal resistance. 1. The power loss is calculated by using the
formula ((1/η) - 1) × output power = power losses (Pd). η =
efficiency of product. E.g. 95% = 0.95 2. Find the thermal
resistance (Rth) in the Thermal Resistance graph found in the
Output section for each model. Note that the thermal resistance can
be significantly reduced if a heat sink is mounted on the top of
the base plate. Calculate the temperature increase (∆T). ∆T = Rth x
Pd 3. Max allowed ambient temperature is: Max TP1 - ∆T. E.g. BMR
453 5100/001 at 2 m/s: 1. (( ) - 1) × 396 W = 23.5 W 2. 23.5 W ×
3.1°C/W = 73°C 3. 125 °C – 73°C = max ambient temperature is 52°C
The actual temperature will be dependent on several factors such as
the PWB size, number of layers and direction of airflow.
1 0.944
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Connections (Top view)
Pin Designation Function 1 +In Positive Input 2 RC Remote
Control
3 Case Case to GND (optional)
4 -In Negative Input
5 -Out Negative Output
6 S+ Positive Remote Sense
7 S- Negative Remote Sense
8 SA0 Address pin 0 9 SA1 Address pin 1 10 SCL PMBus Clock 11
SDA PMBus Data
12 PG SYNC Configurable I/O pin: Power Good output, SYNC-,
tracking-, or ext ref-input
13 DGND PMBus ground
14 SALERT PMBus alert signal
15 CTRL CS PMBus remote control or Current share
16 +Out Positive Output
24
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Technical Specification 24
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Ericsson Internal PRODUCT SPECIFICATION
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ESHNMAA 31/1301-BMR 453+ Approved Checked Date Rev Reference
SEC/D (Julia You) SECSUND 2013-06-24 C
PMBus Communications The products provide a PMBus digital
interface that enables the user to configure many aspects of the
device operation as well as monitor the input and output
parameters. The products can be used with any standard two-wire I2C
or SMBus host device. In addition, the device is compatible with
PMBus version 1.1 and includes an SALERT line to help mitigate
bandwidth limitations related to continuous fault monitoring.
Monitoring via PMBus A system controller can monitor a wide variety
of different parameters through the PMBus interface. The controller
can monitor for fault condition by monitoring the SALERT pin, which
will be asserted when any number of pre-configured fault or warning
conditions occur. The system controller can also continuously
monitor for any number of power conversion parameters including but
not limited to the following: • Input voltage • Output voltage •
Output current • Internal junction temperature • Switching
frequency • Duty cycle Evaluation software A Configuration
Monitoring and Management (CMM) evaluation software, is available
for the products. For more information please contact your local
Ericsson Power Modules sales representative. Addressing The figure
and table below show recommended resistor values with min and max
voltage range for hard-wiring PMBus addresses (series E96, 1%
tolerance resistors suggested):
SA0/SA1 R1 /R0 [kΩ]
0 24.9 1 49.9 2 75 3 100 4 124 5 150
The SA0 and SA1 pins can be configured with a resistor to GND
according to the following equation.
PMBus Address = 8 x (SA0value) + (SA1 value) If any one of those
voltage applied to ADC0 and ADC1 is out of the range from the table
above, PMBus address 127 is assigned. If the calculated PMBus
address is 0 or 12, PMBus address 127 is assigned instead. PMBus
address 11 is not to be used. The user shall also be aware of
further limitations of the addresses as stated in the PMBus
Specification. BMR453 / BMR454 PMBus Specification Exception
Item PMBus Standard BMR453 /BMR454
#SMBALERT Open Drain Totem Pole TLOW:EXT (Cumulative clock low
extend time (slave device))
25 ms 6.25 ms
TBUF_min (Bus free time between Stop and Start Condition)
4.7 us 200 us
25
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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SEC/D (Julia You) SECSUND 2013-06-24 C
PMBus Commands The DC/DC converter is PMBUS compliant. The
following table lists the implemented PMBus commands. For more
detailed information see PMBus Power System Management Protocol
Specification; Part I – General Requirements, Transport and
Electrical Interface and PMBus Power System Management Protocol;
Part II – Command Language.
Designation Cmd Impl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18
Standard PMBus Commands Control Commands PAGE 00h No OPERATION
01h Yes ON_OFF_CONFIG 02h Yes WRITE_PROTECT 10h Yes Output Commands
VOUT_MODE 20h Yes VOUT_COMMAND 21h Yes VOUT_TRIM 22h Yes VOUT_GAIN
23h Yesnote1 VOUT_MAX 24h Yes VOUT_MARGIN_HIGH 25h Yes
VOUT_MARGIN_LOW 26h Yes VOUT_TRANSITION_RATE 27h Yes VOUT_DROOP 28h
No VOUT_SCALE_LOOP 29h Yes note1 VOUT_SCALE_MONITOR 2Ah Yes note1
COEFFICIENTS 30h No POUT_MAX 31h No MAX_DUTY 32h Yes
FREQUENCY_SWITCH 33h Yes VIN_ON 35h Yes VIN_OFF 36h Yes
IOUT_CAL_GAIN 38h Yes note1 IOUT_CAL_OFFSET 39h Yes note1 Fault
Limit Commands POWER_GOOD_ON 5Eh Yes POWER_GOOD_OFF 5Fh Yes
VOUT_OV_FAULT_LIMIT 40h Yes VOUT_UV_FAULT_LIMIT 44h Yes
IOUT_OC_FAULT_LIMIT 46h Yes IOUT_OC_LV_FAULT_LIMIT 48h Yes
IOUT_UC_FAULT_LIMIT 4Bh No
OT_FAULT_LIMIT 4Fh Yes
Designation Cmd Impl OT_WARN_LIMIT 51h Yes UT_WARN_LIMIT 52h Yes
UT_FAULT_LIMIT 53h Yes VIN_OV_FAULT_LIMIT 55h Yes VIN_OV_WARN_LIMIT
57h Yes VIN_UV_WARN_LIMIT 58h Yes VIN_UV_FAULT_LIMIT 59h Yes
VOUT_OV_WARN_LIMIT 42h Yes VOUT_UV_WARN_LIMIT 43h Yes
IOUT_OC_WARN_LIMIT 4Ah Yes IIN_OC_FAULT_LIMIT 5Bh No
IIN_OC_WARN_LIMIT 5Dh No Fault Response Commands
VOUT_OV_FAULT_RESPONSE 41h Yes VOUT_UV_FAULT_RESPONSE 45h Yes
OT_FAULT_RESPONSE 50h Yes UT_FAULT_RESPONSE 54h Yes
VIN_OV_FAULT_RESPONSE 56h Yes VIN_UV_FAULT_RESPONSE 5Ah Yes
IOUT_OC_FAULT_RESPONSE 47h Yes IOUT_UC_FAULT_RESPONSE 4Ch No
IIN_OC_FAULT_RESPONSE 5Ch No Time setting Commands TON_DELAY 60h
Yes TON_RISE 61h Yes TON_MAX_FAULT_LIMIT 62h Yes
TON_MAX_FAULT_RESPONSE 63h Yes TOFF_DELAY 64h Yes TOFF_FALL 65h Yes
TOFF_MAX_WARN_LIMIT 66h Yes Status Commands (Read Only)
CLEAR_FAULTS 03h Yes STATUS_BYTES 78h Yes STATUS_WORD 79h Yes
STATUS_VOUT 7Ah Yes STATUS_IOUT 7Bh Yes STATUS_INPUT 7Ch Yes
STATUS_TEMPERATURE 7Dh Yes STATUS_CML 7Eh Yes STATUS_OTHER 7Fh Yes
Monitor Commands (Read Only)
READ_VIN 88h Yes
26
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Designation Cmd Impl READ_VOUT 8Bh Yes READ_IOUT 8Ch Yes
READ_TEMPERATURE_1 8Dh Yes READ_TEMPERATURE_2 8Eh Yes
READ_FAN_SPEED_1 90h No READ_DUTY_CYCLE 94h Yes READ_FREQUENCY 95h
Yes READ_POUT 96h No READ_PIN 97h No Identification Commands (Read
Only) PMBUS_REVISION 98h Yes MFR_ID 99h Yes note1 MFR_MODEL 9Ah Yes
note1 MFR_REVISION 9Bh Yes note1 MFR_LOCATION 9Ch Yes note1
MFR_DATE 9Dh Yes note1 MFR_SERIAL 9Eh Yes note1 Group Commands
INTERLEAVE 37h No
Supervisory Commands STORE_DEFAULT_ALL 11h Yes note2
RESTORE_DEFAULT_ALL 12h Yes STORE_USER_ALL 15h No RESTORE_USER_ALL
16h No BMR 453/454 Specific Commands MFR_POWER_GOOD_POLARITY D0h
Yes MFR_VOUT_UPPER_RESISTOR D2h Yes note1 MFR_VIN_SCALE_MONITOR D3h
Yes note1 MFR_CLA_TABLE_NUM_ROW D4h Yes MFR_CLA_ROW_COEFFICIENTS
D5h Yes MFR_STORE_CLA_TABLE D6h Yes MFR_ACTIVE_COEFF_CLA_TABLE D8h
Yes MFR_SET_ROM_MODE D9h Yes note1 MFR_SELECT_TEMP_SENSOR DCh Yes
MFR_VIN_OFFSET DDh Yes note1 MFR_REMOTE_TEMP_CAL E2h Yes
MFR_REMOTE_CONTROL E3h Yes MFR_DEAD_BAND_MODE E4h Yes note1
MFR_DEAD_BAND_DELAY E5h Yes note1 MFR_TEMP_COEFF E7h Yes note1
MFR_VOUT_ANALOG_SCALE E8h Yes
MFR_READ_VOUT_ANALOG_REF E9h Yes
Designation Cmd Impl MFR_DEBUG_BUFF F0h Yes MFR_SETUP_PASSWORD
F1h Yes MFR_DISABLE_SECURITY F2h Yes MFR_DEAD_BAND_IOUT_THRESHOLD
F3h Yes note1 MFR_SECURITY_BIT_MASK F4h Yes MFR_PRIMARY_TURN F5h
Yes note1 MFR_SECONDARY_TURN F6h Yes note1 MFR_SET_DPWM_POLARITY
F7h Yes note1 MFR_ILIM_SOFTSTART F8h Yes MFR_MULTI_PIN_CONFIG F9h
Yes MFR_DEAD_BAND_VIN_THRESHOLD FAh Yes note1
MFR_DEAD_BAND_VIN_IOUT_HYS FBh Yes note1 MFR_FIRMEWARE_VERSION FCh
Yes note1 MFR_MESSAGE_CODE_DEVICE_ID FDh Yes note1 Notes: Cmd is
short for Command. Impl is short for Implemented. Note1: the
content is protected for being overwritten to secure normal
operation Note 2: Power must be kept on at least 700ms after
sending STORE_DEFAULT_ALL command for data flash refresh.
27
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Technical Specification 27
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Ericsson Internal PRODUCT SPEC. MECHANICAL
1 (8)
Prepared (also subject responsible if other) No.
EPEIHLI 4/1301- BMR453 Uen Approved Checked Date Rev
Reference
SEC/D [Julia You] See §1 2013-12-04 K
Mechanical Information - Hole Mount, Open Frame Version
All component placements – whether shown as physical components
or symbolical outline – are for reference only and are subject to
change throughout the product’s life cycle, unless explicitly
described and dimensioned in this drawing.
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
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Technical Specification 28
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Ericsson Internal PRODUCT SPEC. MECHANICAL
2 (8)
Prepared (also subject responsible if other) No.
EPEIHLI 4/1301- BMR453 Uen Approved Checked Date Rev
Reference
SEC/D [Julia You] See §1 2013-12-04 K
Mechanical Information- Hole Mount, Base Plate Version
All component placements – whether shown as physical components
or symbolical outline – are for reference only and are subject to
change throughout the product’s life cycle, unless explicitly
described and dimensioned in this drawing.
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
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Technical Specification 29
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Ericsson Internal PRODUCT SPEC. MECHANICAL
3 (8)
Prepared (also subject responsible if other) No.
EPEIHLI 4/1301- BMR453 Uen Approved Checked Date Rev
Reference
SEC/D [Julia You] See §1 2013-12-04 K
Mechanical Information - SMD mount, Open Frame Version
All component placements – whether shown as physical components
or symbolical outline – are for reference only and are subject to
change throughout the product’s life cycle, unless explicitly
described and dimensioned in this drawing.
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
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Technical Specification 30
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Ericsson Internal PRODUCT SPEC. MECHANICAL
4 (8)
Prepared (also subject responsible if other) No.
EPEIHLI 4/1301- BMR453 Uen Approved Checked Date Rev
Reference
SEC/D [Julia You] See §1 2013-12-04 K
Mechanical Information - Hole mount, Open Frame Version, Non
Digital Interface
All component placements – whether shown as physical components
or symbolical outline – are for reference only and are subject to
change throughout the product’s life cycle, unless explicitly
described and dimensioned in this drawing.
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
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Technical Specification 31
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Ericsson Internal PRODUCT SPEC. 1 (5)
Prepared (also subject responsible if other) No.
EPEIHLI 5/1301 BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) See §1 2013-11-28 E
Soldering Information – Surface Mounting The surface mount
product is intended for forced convection or vapor phase reflow
soldering in SnPb and Pb-free processes. The reflow profile should
be optimised to avoid excessive heating of the product. It is
recommended to have a sufficiently extended preheat time to ensure
an even temperature across the host PCB and it is also recommended
to minimize the time in reflow. A no-clean flux is recommended to
avoid entrapment of cleaning fluids in cavities inside the product
or between the product and the host board, since cleaning residues
may affect long time reliability and isolation voltage. Minimum Pin
Temperature Recommendations Pin number 5 is chosen as reference
location for the minimum pin temperature recommendation since this
will likely be the coolest solder joint during the reflow process.
SnPb solder processes For SnPb solder processes, a pin temperature
(TPIN) in excess of the solder melting temperature, (TL, 183°C for
Sn63Pb37) for more than 30 seconds and a peak temperature of 210°C
is recommended to ensure a reliable solder joint. For dry packed
products only: depending on the type of solder paste and flux
system used on the host board, up to a recommended maximum
temperature of 245°C could be used, if the products are kept in a
controlled environment (dry pack handling and storage) prior to
assembly. General reflow process specifications SnPb eutectic
Pb-free
Average ramp-up (TPRODUCT) 3°C/s max 3°C/s max Typical solder
melting (liquidus) temperature TL 183°C 221°C
Minimum reflow time above TL
30 s 30 s
Minimum pin temperature TPIN 210°C 235°C
Peak product temperature TPRODUCT
225°C 260°C
Average ramp-down (TPRODUCT)
6°C/s max 6°C/s max
Maximum time 25°C to peak 6 minutes 8 minutes
TPRODUCT maximum TPIN minimum
Time
Pin profile
Product profile
TL
Time in reflow
Time in preheat / soak zone
Time 25°C to peak
Temperature
Lead-free (Pb-free) solder processes For Pb-free solder
processes, a pin temperature (TPIN) in excess of the solder melting
temperature (TL, 217 to 221°C for SnAgCu solder alloys) for more
than 30 seconds and a peak temperature of 235°C on all solder
joints is recommended to ensure a reliable solder joint. Maximum
Product Temperature Requirements Top of the product PCB near pin 2
is chosen as reference location for the maximum (peak) allowed
product temperature (TPRODUCT) since this will likely be the
warmest part of the product during the reflow process. SnPb solder
processes For SnPb solder processes, the product is qualified for
MSL 1 according to IPC/JEDEC standard J-STD-020C. During reflow
TPRODUCT must not exceed 225 °C at any time. Pb-free solder
processes For Pb-free solder processes, the product is qualified
for MSL 3 according to IPC/JEDEC standard J-STD-020C. During reflow
TPRODUCT must not exceed 260 °C at any time. Dry Pack Information
Products intended for Pb-free reflow soldering processes are
delivered in standard moisture barrier bags according to IPC/JEDEC
standard J-STD-033 (Handling, packing, shipping and use of
moisture/reflow sensitivity surface mount devices). Using products
in high temperature Pb-free soldering processes requires dry pack
storage and handling. In case the products have been stored in an
uncontrolled environment and no longer can be considered dry, the
modules must be baked according to J-STD-033. Thermocoupler
Attachment
Pin 5 for measurement of minimum Pin (solder joint) temperature
TPIN
Pin 2 for measurement of maximum product temperature
TPRODUCT
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Ericsson Internal PRODUCT SPEC. 2 (5)
Prepared (also subject responsible if other) No.
EPEIHLI 5/1301 BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) See §1 2013-11-28 E
Delivery Package Information – Surface Mount Version The
products are delivered in antistatic injection molded trays (Jedec
design guide 4.10D standard).
Tray Specifications
Material Antistatic PPE Surface resistance 105 < Ohm/square
< 1012
Bakability The trays can be baked at maximum 125°C for 48 hours
Tray thickness 14.50 mm 0.571 [inch] Box capacity 20 products (2
full trays/box) Tray weight 125 g empty, 574 g full tray
JEDEC standard tray for 2x5 = 10 products. All dimensions in mm
[inch] Tolerances: X.x ±0.26 [0.01], X.xx ±0.13 [0.005] Note: pick
up positions refer to center of pocket. See mechanical drawing for
exact location on product.
33
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BMR 453 series Fully regulated Intermediate Bus ConvertersInput
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Ericsson Internal PRODUCT SPEC. 3 (5)
Prepared (also subject responsible if other) No.
EPEIHLI 5/1301 BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) See §1 2013-11-28 E
Soldering Information – Hole Mounting The hole mounted product
is intended for plated through hole mounting by wave or manual
soldering. The pin temperature is specified to maximum to 270°C for
maximum 10 seconds. A maximum preheat rate of 4°C/s and maximum
preheat temperature of 150°C is suggested. When soldering by hand,
care should be taken to avoid direct contact between the hot
soldering iron tip and the pins for more than a few seconds in
order to prevent overheating. A no-clean flux is recommended to
avoid entrapment of cleaning fluids in cavities inside the product
or between the product and the host board. The cleaning residues
may affect long time reliability and isolation voltage. Delivery
Package Information – Hole Mount Version The products are delivered
in antistatic trays.
Tray Specifications
Material PE Foam Surface resistance 105 < Ohm/square <
1011 Bakability The trays are not bakeable Tray capacity 20
converters/tray
Box capacity Product – Open frame /Base plate option 60 products
(3 full trays /box)
Weight
Product – Open frame 1100 g full tray, 140g empty tray Product –
Base plate option 1480 g full tray, 140g empty tray
34
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 34
-
Ericsson Internal PRODUCT SPEC. 4 (5)
Prepared (also subject responsible if other) No.
EPEIHLI 5/1301 BMR 453 Uen Approved Checked Date Rev
Reference
SEC/D (Julia You) See §1 2013-11-28 E
Product Qualification Specification
Characteristics
External visual inspection IPC-A-610
Change of temperature (Temperature cycling) IEC 60068-2-14
Na
Temperature range Number of cycles Dwell/transfer time
-40 to 100°C 1000 15 min/0-1 min
Cold (in operation) IEC 60068-2-1 Ad Temperature TA Duration
-45°C 72 h
Damp heat IEC 60068-2-67 Cy Temperature Humidity Duration
85°C 85 % RH 1000 hours
Dry heat IEC 60068-2-2 Bd Temperature Duration 125°C 1000 h
Electrostatic discharge susceptibility
IEC 61340-3-1, JESD 22-A114 IEC 61340-3-2, JESD 22-A115
Human body model (HBM) Machine Model (MM)
Class 2, 2000 V Class 3, 200 V
Immersion in cleaning solvents IEC 60068-2-45 XA, method 2 Water
Glycol ether Isopropyl alcohol
55°C 35°C 35°C
Mechanical shock IEC 60068-2-27 Ea Peak acceleration Duration
100 g 6 ms
Moisture reflow sensitivity 1 J-STD-020C Level 1 (SnPb-eutectic)
Level 3 (Pb Free) 225°C 260°C
Operational life test MIL-STD-202G, method 108A Duration 1000
h
Resistance to soldering heat 2 IEC 60068-2-20 Tb, method 1A
Solder temperature Duration 270°C 10-13 s
Robustness of terminations IEC 60068-2-21 Test Ua1 IEC
60068-2-21 Test Ue1 Through hole mount products Surface mount
products
All leads All leads
Solderability
IEC 60068-2-58 test Td 1 IEC 60068-2-20 test Ta 2
Preconditioning Temperature, SnPb Eutectic Temperature, Pb-free
Preconditioning Temperature, SnPb Eutectic Temperature, Pb-free
150°C dry bake 16 h 215°C 235°C Steam ageing 235°C 245°C
Vibration, broad band random IEC 60068-2-64 Fh, method 1
Frequency Spectral density Duration
10 to 500 Hz 0.07 g2/Hz 10 min in each direction
Notes 1 Only for products intended for reflow soldering (surface
mount products) 2 Only for products intended for wave soldering
(plated through hole products)
35
E
BMR 453 series Fully regulated Intermediate Bus ConvertersInput
36-75 V, Output up to 60 A / 396 W
EN/LZT 146 395 R9A March 2014
© Ericsson AB
Technical Specification 35
Meets requirements in high-temperature lead-free soldering
processes.2_1301-BMR453ENL.PDFOutput Current Derating, base plate
optionThermal Resistance, base plate optionCurrent Limit
CharacteristicsOutput CharacteristicsOutput Current Derating, base
plate optionThermal Resistance, base plate optionCurrent Limit
CharacteristicsOutput CharacteristicsOutput Current Derating, base
plate optionThermal Resistance, base plate optionCurrent Limit
CharacteristicsOutput CharacteristicsPower
dissipationEfficiencyCurrent Limit CharacteristicsOutput
Characteristics